Grade 3 Science: Matter and Material Properties
Free Grade 3 Science unit on Matter and Material Properties: 10 lessons in order, starting with Matter. Includes practice questions and answer keys.
10 lessons in this unit
Matter
Learn that matter is anything that has mass and takes up space, and that everything around us is made of matter.
Lesson 2Solids
Learn the properties of solids: fixed shape and volume, and that powders and grains are still solids.
Lesson 3Liquids
Learn the properties of liquids: they flow, take the shape of their container and keep their volume, and compare thick and thin liquids.
Lesson 4Gases
Learn the properties of gases: they spread to fill any container, can be squeezed and have no fixed shape or volume.
Lesson 5Comparing states of matter
Compare solids, liquids and gases using shape, volume, flow and compressibility, and use a particle picture.
Lesson 6Material properties
Learn to describe materials by properties such as hardness, flexibility, transparency, waterproofness and strength, and to test them fairly.
Lesson 7Heating and cooling
Learn that heating warms things and cooling makes them colder, use a thermometer safely and show that materials change temperature at different speeds.
Lesson 8Melting and freezing
Learn that solids melt into liquids when warmed and liquids freeze into solids when cooled, using ice, chocolate and wax safely.
Lesson 9Evaporation
Learn that liquids evaporate into gas, that warmth and wind speed it up, and that puddles and wet clothes dry because of evaporation.
Lesson 10Material selection
Learn to choose the best material for a job by matching properties to needs, testing and considering cost and environment.